What season is sorghum red?

It's the middle and late September. Sorghum blooms in the middle and late September, both around September. Sorghum should be harvested at the beginning of 10, and can be sown from mid-March to late June, with the corresponding maturity from early July to mid-June. Sorghumbicolor(L.)Moench is an annual tall herb in Gramineae. Culms are different in height, stout and erect, with supporting roots at the basal nodes; The leaves are wide and long, and the leaf sheath is hairless or slightly white; Ligule is hard, the apex is round, and the edge is ciliated; Leaf blade linear to linear-lanceolate, base rounded or slightly auriculate, surface dark green.